Description

Benzene, 1,2-Dichloro-3-Ethynyl- is a specialized halogenated aromatic building block characterized by its unique combination of chlorine substituents and an ethynyl (acetylene) functional group. This molecular architecture makes it a valuable intermediate for synthesizing complex organic frameworks, particularly in advanced material science and pharmaceutical research. It is primarily sought after by R&D chemists and process development scientists in the agrochemical, pharmaceutical, and specialty polymer industries who require precise, high-purity intermediates for innovative synthesis.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the development of novel active pharmaceutical ingredients (APIs), especially for targeted therapies.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and pesticides, leveraging its halogenated aromatic core.
• Material Science & Polymer Chemistry: Acts as a monomer or cross-linking agent in the synthesis of specialty polymers, liquid crystals, and organic electronic materials.
• Organic Synthesis & Catalysis Research: A versatile building block for constructing complex polycyclic aromatic compounds and ligands for catalytic systems via Sonogashira and other cross-coupling reactions.
• Chemical Research & Development: Employed in academic and industrial labs for exploring new synthetic methodologies and creating molecular libraries for screening.

Basic Information

Product Name	Benzene, 1,2-Dichloro-3-Ethynyl-
CAS No.	556112-19-7
Molecular Formula	C8H4Cl2
Molecular Weight	171.02 g/mol
Synonyms	1,2-Dichloro-3-ethynylbenzene; 3-Ethynyl-1,2-dichlorobenzene; 1,2-Dichloro-3-ethynyl-benzene; 2,3-Dichlorophenylacetylene; (2,3-Dichlorophenyl)ethyne
EINECS	Contact for details

Quality Control

Our Benzene, 1,2-Dichloro-3-Ethynyl- is manufactured under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. We provide Certificates of Analysis (COA) with every shipment, detailing all critical specifications. Our quality systems are designed to support cGMP and ISO standards for reliable supply to regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is 2-8°C for long-term stability. Keep container tightly sealed when not in use to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (by GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.